Need 1 song mixed

I manage a pop artist, Scott Isbell. Looking to break him out onto the scene with a hit and his vocals need to be smooth as butter. The track style is a European pop/EDM track but we want vocals with the power and harmony and smoothness from those classics hits of the 90s, real Max Martin-esque. Harmonies have to be so tight that people can't pick them apart. Song was written by the top writers in Finland, demo is attached. Thanks.